Trait FromRequest 

pub trait FromRequest: Sized {
    type Error: IntoResponse;

    // Required method
    fn extract(
        req: &mut Request,
    ) -> impl Future<Output = Result<Self, Self::Error>> + Send;
}

An interface for extracting data from the HTTP Request.

Required Associated Types

type Error: IntoResponse

The type returned in the event of a conversion error.

Required Methods

fn extract( req: &mut Request, ) -> impl Future<Output = Result<Self, Self::Error>> + Send

Extracts this type from the HTTP Request.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromRequest for ()

type Error = Error

async fn extract(req: &mut Request) -> Result<(), Self::Error>

impl<A, B, C, D, E, F, G, H, I, J, K, L> FromRequest for (A, B, C, D, E, F, G, H, I, J, K, L)

where A: FromRequest + Send, B: FromRequest + Send, C: FromRequest + Send, D: FromRequest + Send, E: FromRequest + Send, F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, A::Error: IntoResponse + Send, B::Error: IntoResponse + Send, C::Error: IntoResponse + Send, D::Error: IntoResponse + Send, E::Error: IntoResponse + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(A, B, C, D, E, F, G, H, I, J, K, L), Self::Error>

impl<B, C, D, E, F, G, H, I, J, K, L> FromRequest for (B, C, D, E, F, G, H, I, J, K, L)

where B: FromRequest + Send, C: FromRequest + Send, D: FromRequest + Send, E: FromRequest + Send, F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, B::Error: IntoResponse + Send, C::Error: IntoResponse + Send, D::Error: IntoResponse + Send, E::Error: IntoResponse + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(B, C, D, E, F, G, H, I, J, K, L), Self::Error>

impl<C, D, E, F, G, H, I, J, K, L> FromRequest for (C, D, E, F, G, H, I, J, K, L)

where C: FromRequest + Send, D: FromRequest + Send, E: FromRequest + Send, F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, C::Error: IntoResponse + Send, D::Error: IntoResponse + Send, E::Error: IntoResponse + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(C, D, E, F, G, H, I, J, K, L), Self::Error>

impl<D, E, F, G, H, I, J, K, L> FromRequest for (D, E, F, G, H, I, J, K, L)

where D: FromRequest + Send, E: FromRequest + Send, F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, D::Error: IntoResponse + Send, E::Error: IntoResponse + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(D, E, F, G, H, I, J, K, L), Self::Error>

impl<E, F, G, H, I, J, K, L> FromRequest for (E, F, G, H, I, J, K, L)

where E: FromRequest + Send, F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, E::Error: IntoResponse + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(E, F, G, H, I, J, K, L), Self::Error>

impl<F, G, H, I, J, K, L> FromRequest for (F, G, H, I, J, K, L)

where F: FromRequest + Send, G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, F::Error: IntoResponse + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract( req: &mut Request, ) -> Result<(F, G, H, I, J, K, L), Self::Error>

impl<G, H, I, J, K, L> FromRequest for (G, H, I, J, K, L)

where G: FromRequest + Send, H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, G::Error: IntoResponse + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(G, H, I, J, K, L), Self::Error>

impl<H, I, J, K, L> FromRequest for (H, I, J, K, L)

where H: FromRequest + Send, I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, H::Error: IntoResponse + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(H, I, J, K, L), Self::Error>

impl<I, J, K, L> FromRequest for (I, J, K, L)

where I: FromRequest + Send, J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, I::Error: IntoResponse + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(I, J, K, L), Self::Error>

impl<J, K, L> FromRequest for (J, K, L)

where J: FromRequest + Send, K: FromRequest + Send, L: FromRequest + Send, J::Error: IntoResponse + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(J, K, L), Self::Error>

impl<K, L> FromRequest for (K, L)

where K: FromRequest + Send, L: FromRequest + Send, K::Error: IntoResponse + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(K, L), Self::Error>

impl<L> FromRequest for (L,)

where L: FromRequest + Send, L::Error: IntoResponse + Send,

type Error = Error

async fn extract(req: &mut Request) -> Result<(L,), Self::Error>

impl<T> FromRequest for Option<T>

where T: FromRequest,

type Error = Infallible

async fn extract(req: &mut Request) -> Result<Self, Self::Error>

impl<T> FromRequest for Result<T, T::Error>

where T: FromRequest,

type Error = Infallible

async fn extract(req: &mut Request) -> Result<Self, Self::Error>

Implementors

impl FromRequest for CsrfToken

Available on crate feature csrf only.

type Error = Error

impl FromRequest for Cookies

Available on crate feature cookie only.

type Error = CookiesError

impl FromRequest for Limits

Available on crate feature limits only.

type Error = Infallible

impl FromRequest for Session

Available on crate feature session only.

type Error = Infallible

impl FromRequest for WebSocket

Available on crate feature websocket only.

type Error = WebSocketError

impl FromRequest for Multipart

Available on crate feature multipart only.

type Error = PayloadError

impl<T> FromRequest for Form<T>

where T: DeserializeOwned,

Available on crate feature form only.

type Error = PayloadError

impl<T> FromRequest for Header<T>

where T: Header,

type Error = HeaderError

impl<T> FromRequest for Json<T>

where T: DeserializeOwned,

Available on crate feature json only.

type Error = PayloadError

impl<T> FromRequest for Params<T>

where T: DeserializeOwned,

Available on crate feature params only.

type Error = ParamsError

impl<T> FromRequest for Query<T>

where T: DeserializeOwned,

Available on crate feature query only.

type Error = PayloadError

impl<T> FromRequest for State<T>

where T: Clone + Send + Sync + 'static,

Available on crate feature state only.

type Error = StateError